Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

matts science 4

QuestionAnswer
electromagnetic waves radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
medium An intervening substance through which something else is transmitted or carried on
waves with lowest frequency Radio waves.
waves that are detectable by human eyes Light waves
waves that cause sunburn ultraviolet light (the UV ray)
waves that penetrate skin and muscle but stopped by lead shields? x-rays
wave with the highest frequency gamma rays
reflection as the bouncing back of a ray of light into the same medium, when it strikes a surface.
refraction The turning or bending of any wave, such as a light or sound wave, when it passes from one medium into another of different optical density
interference The variation of wave amplitude that occurs when waves of the same or different frequency come together.
law of reflection The angle of incidence is always equal to the angle of reflection
scattering The dispersal of a beam of particles or of radiation into a range of directions as a result of physical interactions.
angle of incidence is the angle measured from the ray to the surface normal.
angle of reflection is the angle measured from the reflected ray to the surface normal.
incident ray is a ray of light that strikes a surface.
reflected ray is the ray that represents the light reflected by the surface
Created by: mktmac